A = 100
B = 150
C = float(A) + float(B)
print('数字求和为：%d'  % C)

import math






f1 = 1.23
print('f1:' f1)
print("f1Type:",type(f1))
f2 = 1243.987654321
print("f2: ",f2)
print("f2Type: ", type(f2))


f3 = 1.2e5
print("f3: ", f3)
print("f3Type:",type(f3))
f4 = 1.23 * 0.1
print("f4: ", f4)
print(f4Ty)



print(bin(60))
print(oct(60))
print(hex(60))
print(int(6.8))
print(float(6))
print(str(60))


a = 2
b = 11
print(a + b)
print(a - b)
print(a * b)
print(a / b)
print(a //b)
print(a % b)
print(a ** b)


str1 = 'hello'
print('h' in str1)
print('a' in str1)
print（'c' not in str1）
print('o' not in str1)